Laser-arc apparatus and method for controlling plasma cloud

Details Laser-arc apparatus and method for controlling plasma cloud Laser-arc apparatus and method for controlling plasma cloud

1988-10-24

1991-04-09

Shaw, Clifford C.

Electric heating

Metal heating

By arc

21912164, 21913051, B23K 9067

Patent

active

050066889

ABSTRACT:
A pulsed laser arc welding method and apparatus whereby a pulsed input laser beam is generated by a laser pulse generator to cause an ionized plasma cloud to be generated at a worksite. A power supply supplies energy to an arc welding device, which is stored in a capacitor therein. This energy is drawn out of the storage capacitor once the ionized plasma cloud is sufficiently conductive. Control circuitry is provided to control the pulse repetition frequency of the laser pulse generator and to control the energy dissipation from the storage capacitor in the arc welding device.

REFERENCES:
patent: 3301996 (1967-01-01), Bidwell
patent: 3872279 (1975-03-01), Fairbairn
patent: 4167662 (1979-09-01), Steen
patent: 4507540 (1985-03-01), Hamasaki
patent: 4829153 (1989-05-01), Correy
Steen, "Arc Augmented Laser Processing of Materials", J. Appl. Phys., Nov. 1980, pp. 5636-5641.

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